If the contract is downloaded

1. The revenue from the purchasing power contract varies from two to three years. You need to book and purchase the mining machinery in advance, search for electricity or look for the mine trusteeship, which has a lot of deployment costs and electricity costs. It also needs manual maintenance. The mining machinery has a service life. In addition, the mining machinery market is updated rapidly, so the cost of such calculation is very high, and it is also very troublesome.

2. The reason for computing power contract is that bitcoin mining has become more and more professional, and mining has higher and higher requirements on site and technology. Personal mining has become no longer relaxed and pleasant
therefore, computing power trading platforms like 58hash emerge as the times require. Users only need to purchase computing power, trust computing power to the computing power trading platform, pay a certain maintenance fee, and the computing power hosting platform will uniformly maintain the mining machines, and issue the extracted bitcoin to users on time.

3. If the calculation contract of the mine can handle the relevant refund business, it should be OK

4. What calculation contracts does rrmine have. I don't know much about this, because I haven't used this software. You can ask the professionals.

5. 58coin provides income every day. Even if the principal is recovered, it will continue. Therefore, there is no "principal" theory. However, if you want to realize it, I suggest that you buy and sell your computing contract in the trading market.

6. From the time of registration to now, the contract fee per T of computing power for long-term contracts of the platform has never changed, and the short-term high volatility contracts should be subject to each issue

7. Hello, at present, the only legal virtual digital currency in China is the currency issued by the central bank. You can choose to go to the bank for consultation

8. FTX's computing power contract is a futures contract settled according to the average mining difficulty of bitcoin in a certain period of time. These futures contracts roughly reflect the whole network computing power of BTC. Among them, each calculation contract has a start and expiration date. It starts on the beginning day of each quarter and ends on the last day of each quarter. At the same time, the settlement price of FTX platform computing power contract is: each block excavated in the quarterly cycle; The difficulty of mining calculation in each block at that time; The calculation difficulty of all blocks in the average period; Divided by 1 trillion (10000000000) of these four variables.

9. I think their computing power contract is very cost-effective and worth buying.. Can my answer help you solve the problem? If you can, I hope you can adopt it